Excavator apparatus having stepper type advancing means



July 26, 1960 A. DE sMAl-:LE

ExcAvAToR APPARATUS HAVING STEPPER TYPE ADvANcING MEANS Filed Feb. 25,1957 20 Sheets-Sheet 1 Waag/6, SP s A. DE sMAELE 2,946,578 ExcAvAToPAPPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet 2 July 26,1960 Filed Feb. 25, 1957 alberte Jmcule,

July 26,'1960 A. DE sMAELE 2,946,578

ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS Filed Feb. 25,1957 2O Sheets-Sheet 3 185 FIG 2 0a 1" 108 II a Ul 405 W' Il 43eJNVENTOR. albert enwoele.

July 26, 1960 A. `DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 2O Sheets-Sheet 4 Filed Feb. 25, 1957 'I l so was Boa

INVENToR. Zlbert e/Jmaele,

BY W 9s p July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPERTYPE ADVANCING MEANS 2O Sheets-Sheet 5 Filed Feb. 25, 1957 INVENTOR.Zwart 'maee,

July 26, 1960 f A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 2O Sheets-Sheet 6 Filed Feb. 25, 1957 INVENToR. alberte'nzaele,

/4TTYJ July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPERTYPE ADVANCING MEANS 20 Sheets-Sheet 7 Filed Feb. 25, 1957 mVENToR.dlbertemaele,

July 26, 1960 A. DE sMAELE 2,946,578

ExcAvAToR APPARATUS HAVING STEPPER .TYPE ADvANcING MEANS Filed Feb. 25,1957 2o sneetssneet e ihnen/iol: albert Be/J'mal,

July 26, 1960 A. DE sMAELE 2,946,578

ExcAvAToR APPARATUS HAVING STEPPER TYPE ADvANcING MEANS v Filed Feb. 25,1957 20 Sheets-Sheet 9 xm 4040 1051 1051 "3a "f6 1039/1052 1050 1w 2510.

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Kaw M July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 20 Sheets-Sheet 10 Filed Feb. 25, 1957 L ,hz/antonalbert emale.

July 26, 1960 A. DE sMAELE ExcAvAToR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 2O Sheets-Sheet 11 Filed Feb. 25, 1957 mmm ratori July26, 1960 A. DE sMAELE 2,946,578

EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS Filed Feb. 25,1957 20 Sheets-Sheet l? FIG. I6

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ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 20 Sheets-Sheet13 m 3P Er ,i1/venian CLLber De Smale,

July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 2O Sheets-#Sheet 14 Filed Feb, 25, 1957 1N V EN TOR.dlberefmaele,

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EXCAVATOR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS July 26, 1960 lA. DE sMAELE ExcAvAToRl APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2OSheets-Sheet 17 Filed Feb. 25, 1957 own; *wo* A 33,# lili-- III-- -5----33 M o 53 33k imo* die* dm3* 2.8) l 1 :3\ 3a. s3 n 1 z Si 53 m3 :S 8m

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July 26, 1960 A. DE sMAELE EXCAVATOR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 20 Sheets-Sheet 18 @o3 B3 m3* $2. 28. $3 :be 22 22,uu/'entor ZLberteJmaP/Ze,

NN di July 26, 1960 A. DE sMAELE EXCAVATGR APPARATUS HAVING STEPPER TYPEADVANCING MEANS 2O Sheets-Sheet 19 Filed Feb. 25, 1957 July 26, 1960 A.DE sMAELE ExcAvAToR APPARATUS HAVING STEPPER TYPE ADVANCING MEANS 2OSheets-Sheet 20 Filed Feb. 25, 1957 falen/ton Cdberbe 'naele,

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